package day03;
//字符串连接运算符
public class OperDemo5 {
    public static void main(String[] args) {
        //5）字符串连接运算符：+
        int age = 40;
        System.out.println("age=");             //age=
        System.out.println(age);                //40
        System.out.println("age="+age);         //age=40
        System.out.println("我今年"+age+"岁了");  //我今年40岁了

        String name = "ljt";                    //声明字符串型变量name，并赋值为ljt
        System.out.println("大家好我叫"+name);    //大家好我叫ljt
        System.out.println("大家好我叫"+name+"，我今年"+age+"岁了"); //大家好我叫ljt，我今年40岁了

        System.out.println(10+20+""+30);        //3030      String
        System.out.println(""+10+20+30);        //102030    String
        System.out.println(10+20+30+"");        //60        String
    }
}
